Come to think of it, Oda skipped the parts with Gloriosa joining Rocks entirely. First guess is of course a Davy Back fight, but then the question arises of why they didn't take Shakky instead since they're all so infatuated with her? Also, i got the impression this chapter that this was the first time the Rocks Pirates actually met Shakky. How and why did Gloriosa join Rocks then? She's still in love with Roger this chapter so it can't be due to her falling for Rocks.